[W/K] :: C6H6

  Aromatic \Ar`o*mat"ic\, Aromatical \Ar`o*mat"ic*al\, a. [L.
     aromaticus, Gr. ?: cf. F. aromatique. See Aroma.]
     Pertaining to, or containing, aroma; fragrant; spicy;
     strong-scented; odoriferous; as, aromatic balsam.
     [1913 Webster]
  
     Aromatic compound (Chem.), one of a large class of organic
        substances, as the oils of bitter almonds, wintergreen,
        and turpentine, the balsams, camphors, etc., many of which
        have an aromatic odor. They include many of the most
        important of the carbon compounds and may all be derived
        from the benzene group, C6H6. The term is extended also
        to many of their derivatives.
  
     Aromatic vinegar. See under Vinegar.
        [1913 Webster]

  Dipropargyl \Di`pro*par"gyl\, n. [Prefix di- + propargyl.]
     (Chem.)
     A pungent, mobile, volatile liquid, C6H6, produced
     artificially from certain allyl derivatives. Though isomeric
     with benzine, it is very different in its chemical relations.
     Called also dipropinyl.
     [1913 Webster]

  Benzene \Ben"zene\, n. [From Benzoin.] (Chem.)
     A volatile, very inflammable liquid, C6H6, contained in the
     naphtha produced by the destructive distillation of coal,
     from which it is separated by fractional distillation. The
     name is sometimes applied also to the impure commercial
     product or benzole, and also, but rarely, to a similar mixed
     product of petroleum.
     [1913 Webster]
  
     Benzene nucleus, Benzene ring (Chem.), a closed chain or
        ring, consisting of six carbon atoms, each with one
        hydrogen atom attached, regarded as the type from which
        the aromatic compounds are derived. This ring formula is
        provisionally accepted as representing the probable
        constitution of the benzene molecule, C6H6, and as the
        type on which its derivatives are formed.
        [1913 Webster]